1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6b90406d00d483ec49e15392537ca6b2f3c79613a02c863366cd8f65bc6b9c6. Chain 2 (Bitcoin): anchored in block 953407 (2026-06-12T19:24:56Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/21c47eaa-5df9-4633-8227-32e552cc7480.json and https://artists.proofprofile.net/proofs/artist/21c47eaa-5df9-4633-8227-32e552cc7480.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x52cb51e6035698bc9a0a7da152c6a94c85030300f58ee75e78593c5624c1e7d3. Chain 2 (Bitcoin): anchored in block 956397 (2026-07-02T21:02:00Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UK4Y51300004.
Great Minds Think Alike, All Brains Taste the Same
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x9b73341f3298a1ae146a04712d0a43744741a4e3c2ee9a1bb0f36bb3ca00d374. Chain 2 (Bitcoin): anchored in block 958484 (2026-07-18T03:34:53Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBGEY1500013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaa248b6386454b1e16eeed0e4cd0ae57f2e917f61033f5650d7dcd0b9211e004. Chain 2 (Bitcoin): anchored in block 958607 (2026-07-18T21:01:11Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBGEY1500015.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x492b92dcc25c4fafb0aac44c0eda149c9a5222539dba4fe51452b9b15d048695. Chain 2 (Bitcoin): anchored in block 956545 (2026-07-03T19:59:51Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBGEY1500016.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x69d73795bc960d81c78d297022d993d884a1a4756803b231f97177d0168b6e57. Chain 2 (Bitcoin): anchored in block 956639 (2026-07-04T11:19:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBGEY1500021.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x0ea172a439a8306203960da77df414c49cc8d8db841e54a690bfcbdffb90004f. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBGEY1500023.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x410a5af0432002b06a3ed7196a114d89cade766f345d906cadf9e1c5327af2d1. Chain 2 (Bitcoin): anchored in block 958959 (2026-07-21T03:51:22Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBGEY1500024.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc419df6bdaf5092342c1c1cd38460730da7d78f3d872bcb68adcec40652e1f3d. Chain 2 (Bitcoin): anchored in block 958194 (2026-07-15T20:32:27Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UK4Y51400001.
Great Minds Think Alike, All Brains Taste The Same
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x016d3fb58e3d7ec5f5eac94d14cdee844c57a143218ed6e2b55c0ffd98e4e8c6. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UK4Y51400003.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xad4cdd60e4937af8621d1bd0f9a4ff07afa7ec67d53670211eb11bc0242acf67. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UK4Y51400005.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5ec77794874d24bdc9f3aa397ae62c10f044b650cc61f3ea19353a42ee857788. Chain 2 (Bitcoin): anchored in block 958428 (2026-07-17T15:15:14Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UK4Y51400006.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xdd103072a0e2a0de5219479bf17141ef37ed5f821cfb157e1daf4ffaa794aefb. Chain 2 (Bitcoin): anchored in block 958567 (2026-07-18T15:22:40Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UK4Y51400007.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf1cb59e3076aeb6fed54f79f072c551cee86d27feabd4595fcaf28819d77ace1. Chain 2 (Bitcoin): anchored in block 957888 (2026-07-13T17:43:59Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UK4Y51400009.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xfbcf1077573dbf7e515f7b731c98acbca96b45f68332a8d27ee6ff5b6792d642. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UK4Y51400010.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f132de1816874cfd5b9e8bbcb94bd3474b013a9663be7cd870818c4f6eee96a. Chain 2 (Bitcoin): anchored in block 956474 (2026-07-03T08:56:35Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UK4Y51400011.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf4464839b73cb3cf4af092cd9dbe370a207326ad0c8221cb1c3952af1a7346ee. Chain 2 (Bitcoin): anchored in block 956634 (2026-07-04T10:04:33Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UK4Y51400012.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6e818ac92d8752302e51bfaa3939e86189a7a155c29042add876e9f4ebe46e4. Chain 2 (Bitcoin): anchored in block 956725 (2026-07-05T01:12:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UK4Y51400013.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc6c3e9c8050da24d1ef7ab7abeac1b3e9cc1393b5ea1dbbfa285a80b7fdee9a7. Chain 2 (Bitcoin): anchored in block 956772 (2026-07-05T10:01:46Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/UK4Y51400017.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xf06afc78c6dc1e76021ab378a1b6971587238f0d75810b4c1bc063ebe2bd90d8. Chain 2 (Bitcoin): anchored in block 958955 (2026-07-21T03:03:40Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBGEY1500020.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc72ea252954fa8f67e0b1eab2a9fe530196d9d7d64185252c1bd3d1d2d13620b. Chain 2 (Bitcoin): anchored in block 958383 (2026-07-17T08:20:01Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBGEY1600047.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x10e32485cc9a6b3434bf7204961fdb2fcca89117ed398c3042f99599cb0199a1. Chain 2 (Bitcoin): anchored in block 958276 (2026-07-16T10:20:17Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US37V1623004.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xb91eda3dbe908c92d306ac5e2f151ecb9cc554b8f492fc3093f31187961f1852. Chain 2 (Bitcoin): anchored in block 959100 (2026-07-22T05:29:55Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US37V1725301.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xe6bcb1b9f40f1b4cc77a0a03c73145bf46b085b30aac36d4877c1df2309b5640. Chain 2 (Bitcoin): anchored in block 958987 (2026-07-21T09:04:56Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBGEY1600068.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xa1ff77328ee01e57909e8ec8d149f668d784c44caa582d33903c03c5fb29f374. Chain 2 (Bitcoin): anchored in block 959031 (2026-07-21T16:15:11Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GB9TP2000402.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x96b1354247eab28ad94f779e2b50488cb37e8970c33b4890aeec19806c1f3f18. Chain 2 (Bitcoin): anchored in block 958245 (2026-07-16T05:50:22Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GB9TP2000404.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31cc2f23a73873e21c35b42332f8eb48725aab710929b7ff65eca41bed5d646f. Chain 2 (Bitcoin): anchored in block 957898 (2026-07-13T19:28:48Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GB9TP1901754.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x24cbdfd43dc04f35355982f0987e09a25b2fc42780c32ca93a13ae8a61c54103. Chain 2 (Bitcoin): anchored in block 956826 (2026-07-05T19:27:56Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GB9TP2000405.
Journeys - Escape. Sleep. Relax. Repeat. - Season Two
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x5a356b41ced7e24b0e262e07b2efb7491005cc1faf4609c34337ede944c825da. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/GBGEY1500026.